Thinking about gaming at larger picture i think it is safe to claim that there is now 3 distinct target groups:
1) Casual play - or as you know them "Bejeweled" clones, lot of apps on many devices. As cross platform tools mature we will see even more of such casual games, mainly as its the "safest" and "easiest" way to make best proffit per invested $, and you can see that money grabbers like EA are falling behind it as well. Now with Intel and others promoting HTML5 as "trye cross platform tool" they may even pull it off.
2) Online - all big games, and by big i mean games with lot of content, and by lot i mean more than 15 levels/areas - are moving into online space, eather as classic MMO or hybrid Matching (Diablo3), as Montly payment model is slowly phasing out we will see increase in Free-to-play model, and you can't deny it - there is plenty of vanity out there for companies to make a lot of money off selling pointless little things in the game.
3) PC/Console - PC is and will remain powerhouse for AAA+ titles, there are things that can't be done on other devices and it wil stay so for a yet long time. So those who worry about PC gaming ending, don't, there will be always handful of things that will stay on pc, but thats just the point, PC will not be sole focus for anywone anymore. And i think same will be with console, dedicated platforms alone are not enough to justify the cost and as developers spend more time on copy & paste the consumers will grow tired of same game bag of tricks with new textures - thus we will see a bit of decline in both spaces and some kind of "re-balancing" happening eventually.
I may be wrong, but i think this is what will happen. And all the fuss about directx/opengl and windows vs linux vs os-x - this eventually wont matter, single platform tools are too much of a headache, there has been a long need to fill the gap fro cross platform support and i think we are finally enetring the age where this could happen, if and when - well, we have to wait and see
